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If a fire woman dropped a person onto the safety net and right before the person hit the net he had a velocity of 12m / s and 1800 J of kinetic energy , then what was the mass of the person?
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18 votes
18 votes
If a fire woman dropped a person onto the safety net and right before the person hit the net he had a velocity of 12m / s and 1800 J of kinetic energy , then what was the mass of the person?

User Mindmatters
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1 Answer

19 votes
19 votes

Answer: 25 kg

Step-by-step explanation:


1800=(1)/(2) (12)^2m\\\\1800=(144)/(2) m\\\\1800=72m\\\\m=(1800)/(72) =25

If a fire woman dropped a person onto the safety net and right before the person hit-example-1
User Nazir
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